Abstract— The present article investigates the analysis of transient heat conduction through fins. Fins are the extended surface used for enhancing the dissipation of heat transfer rate and different geometrical fins are used as per requirement its accessibility depends. Fins are extensively used in heat exchanging device in automobiles radiators, industrial sectors, power plants, newer technology like fuel cells. Earlier Work under steady state conduction had been carried out extensively. Transient heat conduction analysis for fins is being considered for simplifying heat transfer queries. Transient closed form solution had been derived earlier by various researchers. As proper heat dissipation results in saving of power and lesser chances of overheating problems, perforation are made on the fins. Perforated fin improves heat transfer rate collate to solid fin by varying the different parameter like shape of perforation, diameter of perforation and number of perforation. For the purpose of contrast and optimization, notches of different aspect ratio on single plate have also been analyzed. In a lengthwise short array where the single chimney flow pattern is present, the central portion of fin flat becomes futile due to the fact that, the heated air comes in its contact. In the present study, the fins of different geometries are modified by deposing the central fin portion by cutting a triangular, rectangular and un-notch fins. This article presents a performance analysis of thermal characteristics of Transient Heat Transfer for finite fins and various shapes of notches on single plate for that an experimental setup is developing and also shows a comparison between the experimental results and results obtained by using ANSYS software.

I. INTRODUCTION

Fins are the extended surfaces used for enhancing the dissipation of heat transfer rate. The transient response of fins is important in a wide range of engineering devices, automobiles and industrial sectors. Work under steady state conduction had been carried out extensively. Transient heat conduction analysis for the fins is being considered for simplifying heat transfer queries. Transient Closed form solutions had been derived earlier by various researchers.